ATE274073T1 - METHOD AND DEVICE FOR THE HEAT TREATMENT OF METAL WORKPIECES - Google Patents

METHOD AND DEVICE FOR THE HEAT TREATMENT OF METAL WORKPIECES

Info

Publication number
ATE274073T1
ATE274073T1 AT00111129T AT00111129T ATE274073T1 AT E274073 T1 ATE274073 T1 AT E274073T1 AT 00111129 T AT00111129 T AT 00111129T AT 00111129 T AT00111129 T AT 00111129T AT E274073 T1 ATE274073 T1 AT E274073T1
Authority
AT
Austria
Prior art keywords
heat treatment
nitrogen
devices
heating chamber
metal workpieces
Prior art date
Application number
AT00111129T
Other languages
German (de)
Inventor
Wolfgang Dr Lerche
Bernd Dr Edenhofer
Michael Dr Lohrmann
Original Assignee
Ipsen Int Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ipsen Int Gmbh filed Critical Ipsen Int Gmbh
Application granted granted Critical
Publication of ATE274073T1 publication Critical patent/ATE274073T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/20—Carburising
    • C23C8/22—Carburising of ferrous surfaces
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/28—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in one step
    • C23C8/30—Carbo-nitriding
    • C23C8/32—Carbo-nitriding of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Furnace Details (AREA)

Abstract

Apparatus for heat treating metallic workpieces comprises a heating chamber in which the workpieces are heated and subjected to a gas atmosphere containing nitrogen and a hydrocarbon; and devices for introducing nitrogen and hydrocarbons into the gas atmosphere depending on the carburizing index which represents the carbon content in the edge layer. An Independent claim is also included for a heat treatment process using the above apparatus. The apparatus preferably also has devices for introducing ammonia. The heating chamber is hermetically sealed and is flushed with an inert gas, preferably nitrogen.
AT00111129T 2000-05-24 2000-05-24 METHOD AND DEVICE FOR THE HEAT TREATMENT OF METAL WORKPIECES ATE274073T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00111129A EP1160349B1 (en) 2000-05-24 2000-05-24 Process and apparatus for heat treating of metallic workpieces

Publications (1)

Publication Number Publication Date
ATE274073T1 true ATE274073T1 (en) 2004-09-15

Family

ID=8168822

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00111129T ATE274073T1 (en) 2000-05-24 2000-05-24 METHOD AND DEVICE FOR THE HEAT TREATMENT OF METAL WORKPIECES

Country Status (3)

Country Link
EP (1) EP1160349B1 (en)
AT (1) ATE274073T1 (en)
DE (1) DE50007480D1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10221605A1 (en) * 2002-05-15 2003-12-04 Linde Ag Method and device for the heat treatment of metallic workpieces
PL204747B1 (en) * 2002-10-31 2010-02-26 Politechnika & Lstrok Odzka Method of metal product carburization under negative pressure
WO2005038076A1 (en) * 2003-10-14 2005-04-28 Etudes Et Constructions Mecaniques Low-pressure carburising method and furnace
FR2884523B1 (en) 2005-04-19 2008-01-11 Const Mecaniques Sa Et LOW PRESSURE CARBONITRUTING PROCESS AND FURNACE
US20080149226A1 (en) * 2006-12-26 2008-06-26 Karen Anne Connery Method of optimizing an oxygen free heat treating process
DE102010028165A1 (en) 2010-04-23 2011-10-27 Robert Bosch Gmbh Process for the carbonitriding of metallic components
DE112010005929A5 (en) 2010-10-11 2014-01-02 Ipsen International Gmbh Method and device for carburizing and carbonitriding metallic materials
DE102014113846A1 (en) * 2014-09-24 2016-03-24 Härterei Technotherm Gmbh & Co. Kg Process for treating a ferrous material and treated ferrous material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3146042A1 (en) * 1981-11-20 1983-05-26 Linde Ag, 6200 Wiesbaden METHOD FOR USEFUL METAL WORKPIECES
US5139584A (en) * 1989-07-13 1992-08-18 Solo Fours Industriels Sa Carburization process
DE19704871C1 (en) * 1997-02-10 1998-10-15 Will Haertetechnik Gmbh Hardening hollow cold extruded steel shaft
FR2777911B1 (en) * 1998-04-28 2000-07-28 Aubert & Duval Sa LOW PRESSURE CARBONITRURATION OF METAL ALLOY PARTS

Also Published As

Publication number Publication date
EP1160349A1 (en) 2001-12-05
EP1160349B1 (en) 2004-08-18
DE50007480D1 (en) 2004-09-23

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